[alsa-devel] [PATCH v6 4/4] ASoC: intel - adds support for decoupled mode in skl driver
Vinod Koul
vinod.koul at intel.com
Wed Jun 17 15:00:55 CEST 2015
Decoupled mode is where audio link is broken to frontend HDA and backend
(hda/i2s/dmic/hdmi) links. This patch adds support for decoupled mode and
then adds dais, dai ops for be/fe cpu dais and interrupt handler change to
support decoupled mode
Signed-off-by: Jeeja KP <jeeja.kp at intel.com>
Signed-off-by: Vinod Koul <vinod.koul at intel.com>
---
sound/soc/intel/skylake/skl-pcm.c | 367 +++++++++++++++++++++++++++++++++++++-
sound/soc/intel/skylake/skl.c | 11 ++
2 files changed, 370 insertions(+), 8 deletions(-)
diff --git a/sound/soc/intel/skylake/skl-pcm.c b/sound/soc/intel/skylake/skl-pcm.c
index 4848696f749c..c8adaabdef12 100644
--- a/sound/soc/intel/skylake/skl-pcm.c
+++ b/sound/soc/intel/skylake/skl-pcm.c
@@ -96,6 +96,14 @@ static void skl_set_pcm_constrains(struct hdac_ext_bus *ebus,
20, 178000000);
}
+static enum hdac_ext_stream_type skl_get_host_stream_type(struct hdac_ext_bus *ebus)
+{
+ if (ebus->ppcap)
+ return HDAC_EXT_STREAM_TYPE_HOST;
+ else
+ return HDAC_EXT_STREAM_TYPE_COUPLED;
+}
+
static int skl_pcm_open(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
@@ -108,7 +116,7 @@ static int skl_pcm_open(struct snd_pcm_substream *substream,
pm_runtime_get_sync(dai->dev);
stream = snd_hdac_ext_stream_assign(ebus, substream,
- HDAC_EXT_STREAM_TYPE_COUPLED);
+ skl_get_host_stream_type(ebus));
if (stream == NULL)
return -EBUSY;
@@ -144,14 +152,26 @@ static int skl_get_format(struct snd_pcm_substream *substream,
{
struct snd_soc_pcm_runtime *rtd = snd_pcm_substream_chip(substream);
struct skl_dma_params *dma_params;
+ struct hdac_ext_bus *ebus = dev_get_drvdata(dai->dev);
int format_val = 0;
- struct snd_soc_dai *codec_dai = rtd->codec_dai;
- dma_params = (struct skl_dma_params *)
+ if (ebus->ppcap) {
+ struct snd_pcm_runtime *runtime = substream->runtime;
+
+ format_val = snd_hdac_calc_stream_format(runtime->rate,
+ runtime->channels,
+ runtime->format,
+ 32, 0);
+
+ } else {
+ struct snd_soc_dai *codec_dai = rtd->codec_dai;
+
+ dma_params = (struct skl_dma_params *)
snd_soc_dai_get_dma_data(codec_dai, substream);
- if (dma_params)
- format_val = dma_params->format;
+ if (dma_params)
+ format_val = dma_params->format;
+ }
return format_val;
}
@@ -192,8 +212,9 @@ static int skl_pcm_hw_params(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct hdac_ext_bus *ebus = dev_get_drvdata(dai->dev);
+ struct hdac_ext_stream *stream = get_hdac_ext_stream(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
- int ret;
+ int ret, dma_id;
dev_dbg(dai->dev, "%s: %s\n", __func__, dai->name);
ret = skl_substream_alloc_pages(ebus, substream,
@@ -208,6 +229,9 @@ static int skl_pcm_hw_params(struct snd_pcm_substream *substream,
dev_dbg(dai->dev, "format_val, rate=%d, ch=%d, format=%d\n",
runtime->rate, runtime->channels, runtime->format);
+ dma_id = hdac_stream(stream)->stream_tag - 1;
+ dev_dbg(dai->dev, "dma_id=%d\n", dma_id);
+
return 0;
}
@@ -215,10 +239,12 @@ static void skl_pcm_close(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct hdac_ext_stream *stream = get_hdac_ext_stream(substream);
+ struct hdac_ext_bus *ebus = dev_get_drvdata(dai->dev);
struct skl_dma_params *dma_params = NULL;
dev_dbg(dai->dev, "%s: %s\n", __func__, dai->name);
- snd_hdac_ext_stream_release(stream, HDAC_EXT_STREAM_TYPE_COUPLED);
+
+ snd_hdac_ext_stream_release(stream, skl_get_host_stream_type(ebus));
dma_params = (struct skl_dma_params *)
snd_soc_dai_get_dma_data(dai, substream);
@@ -242,6 +268,169 @@ static int skl_pcm_hw_free(struct snd_pcm_substream *substream,
return skl_substream_free_pages(ebus_to_hbus(ebus), substream);
}
+static int skl_dmic_prepare(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct snd_pcm_hw_params params = {0};
+ struct snd_interval *channels, *rate;
+
+ dev_dbg(dai->dev, "%s: %s\n", __func__, dai->name);
+
+ channels = hw_param_interval(¶ms, SNDRV_PCM_HW_PARAM_CHANNELS);
+ channels->min = channels->max = substream->runtime->channels;
+ rate = hw_param_interval(¶ms, SNDRV_PCM_HW_PARAM_RATE);
+ rate->min = rate->max = substream->runtime->rate;
+ snd_mask_set(¶ms.masks[SNDRV_PCM_HW_PARAM_FORMAT -
+ SNDRV_PCM_HW_PARAM_FIRST_MASK],
+ substream->runtime->format);
+
+ return 0;
+}
+
+static int skl_link_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai)
+{
+ struct hdac_ext_bus *ebus = dev_get_drvdata(dai->dev);
+ struct hdac_ext_stream *link_dev;
+ struct snd_soc_pcm_runtime *rtd = snd_pcm_substream_chip(substream);
+ struct skl_dma_params *dma_params;
+ struct snd_soc_dai *codec_dai = rtd->codec_dai;
+ int dma_id;
+
+ pr_debug("%s\n", __func__);
+ link_dev = snd_hdac_ext_stream_assign(ebus, substream,
+ HDAC_EXT_STREAM_TYPE_LINK);
+ if (!link_dev)
+ return -EBUSY;
+
+ snd_soc_dai_set_dma_data(dai, substream, (void *)link_dev);
+
+ /* set the stream tag in the codec dai dma params */
+ dma_params = (struct skl_dma_params *)
+ snd_soc_dai_get_dma_data(codec_dai, substream);
+ if (dma_params)
+ dma_params->stream_tag = hdac_stream(link_dev)->stream_tag;
+ snd_soc_dai_set_dma_data(codec_dai, substream, (void *)dma_params);
+ dma_id = hdac_stream(link_dev)->stream_tag - 1;
+
+ return 0;
+}
+
+static int skl_link_pcm_prepare(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_pcm_runtime *rtd = snd_pcm_substream_chip(substream);
+ struct hdac_ext_bus *ebus = dev_get_drvdata(dai->dev);
+ struct hdac_ext_stream *link_dev =
+ snd_soc_dai_get_dma_data(dai, substream);
+ unsigned int format_val = 0;
+ struct skl_dma_params *dma_params;
+ struct snd_soc_dai *codec_dai = rtd->codec_dai;
+ struct snd_pcm_hw_params *params;
+ struct snd_interval *channels, *rate;
+ struct hdac_ext_link *link;
+
+ dev_dbg(dai->dev, "%s: %s\n", __func__, dai->name);
+ if (link_dev->link_prepared) {
+ dev_dbg(dai->dev, "already stream is prepared - returning\n");
+ return 0;
+ }
+ params = devm_kzalloc(dai->dev, sizeof(*params), GFP_KERNEL);
+ if (params == NULL)
+ return -ENOMEM;
+
+ channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
+ channels->min = channels->max = substream->runtime->channels;
+ rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
+ rate->min = rate->max = substream->runtime->rate;
+ snd_mask_set(¶ms->masks[SNDRV_PCM_HW_PARAM_FORMAT -
+ SNDRV_PCM_HW_PARAM_FIRST_MASK],
+ substream->runtime->format);
+
+
+ dma_params = (struct skl_dma_params *)
+ snd_soc_dai_get_dma_data(codec_dai, substream);
+ if (dma_params)
+ format_val = dma_params->format;
+ dev_dbg(dai->dev, "stream_tag=%d formatvalue=%d codec_dai_name=%s\n",
+ hdac_stream(link_dev)->stream_tag, format_val, codec_dai->name);
+
+ snd_hdac_ext_link_stream_reset(link_dev);
+
+ snd_hdac_ext_link_stream_setup(link_dev, format_val);
+
+ link = snd_hdac_ext_bus_get_link(ebus, rtd->codec->component.name);
+ if (!link)
+ return -EINVAL;
+
+ snd_hdac_ext_link_set_stream_id(link, hdac_stream(link_dev)->stream_tag);
+ link_dev->link_prepared = 1;
+
+ return 0;
+}
+
+static int skl_link_pcm_trigger(struct snd_pcm_substream *substream,
+ int cmd, struct snd_soc_dai *dai)
+{
+ struct hdac_ext_stream *link_dev =
+ snd_soc_dai_get_dma_data(dai, substream);
+
+ dev_dbg(dai->dev, "In %s cmd=%d\n", __func__, cmd);
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ case SNDRV_PCM_TRIGGER_RESUME:
+ snd_hdac_ext_link_stream_start(link_dev);
+ break;
+
+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+ case SNDRV_PCM_TRIGGER_SUSPEND:
+ case SNDRV_PCM_TRIGGER_STOP:
+ snd_hdac_ext_link_stream_clear(link_dev);
+ break;
+
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static int skl_link_hw_free(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct hdac_ext_bus *ebus = dev_get_drvdata(dai->dev);
+ struct snd_soc_pcm_runtime *rtd = snd_pcm_substream_chip(substream);
+ struct hdac_ext_stream *link_dev =
+ snd_soc_dai_get_dma_data(dai, substream);
+ struct hdac_ext_link *link;
+
+ dev_dbg(dai->dev, "%s: %s\n", __func__, dai->name);
+
+ link_dev->link_prepared = 0;
+
+ link = snd_hdac_ext_bus_get_link(ebus, rtd->codec->component.name);
+ if (!link)
+ return -EINVAL;
+
+ snd_hdac_ext_link_clear_stream_id(link, hdac_stream(link_dev)->stream_tag);
+ snd_hdac_ext_stream_release(link_dev, HDAC_EXT_STREAM_TYPE_LINK);
+ return 0;
+}
+
+static int skl_hda_be_startup(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ return pm_runtime_get_sync(dai->dev);
+}
+
+static void skl_hda_be_shutdown(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ pm_runtime_mark_last_busy(dai->dev);
+ pm_runtime_put_autosuspend(dai->dev);
+}
+
static struct snd_soc_dai_ops skl_pcm_dai_ops = {
.startup = skl_pcm_open,
.shutdown = skl_pcm_close,
@@ -250,6 +439,21 @@ static struct snd_soc_dai_ops skl_pcm_dai_ops = {
.hw_free = skl_pcm_hw_free,
};
+static struct snd_soc_dai_ops skl_dmic_dai_ops = {
+ .startup = skl_hda_be_startup,
+ .prepare = skl_dmic_prepare,
+ .shutdown = skl_hda_be_shutdown,
+};
+
+static struct snd_soc_dai_ops skl_link_dai_ops = {
+ .startup = skl_hda_be_startup,
+ .prepare = skl_link_pcm_prepare,
+ .hw_params = skl_link_hw_params,
+ .hw_free = skl_link_hw_free,
+ .trigger = skl_link_pcm_trigger,
+ .shutdown = skl_hda_be_shutdown,
+};
+
static struct snd_soc_dai_driver skl_platform_dai[] = {
{
.name = "System Pin",
@@ -270,6 +474,17 @@ static struct snd_soc_dai_driver skl_platform_dai[] = {
},
},
{
+ .name = "Reference Pin",
+ .ops = &skl_pcm_dai_ops,
+ .capture = {
+ .stream_name = "Reference Capture",
+ .channels_min = HDA_MONO,
+ .channels_max = HDA_STEREO,
+ .rates = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_16000,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE,
+ },
+},
+{
.name = "Deepbuffer Pin",
.ops = &skl_pcm_dai_ops,
.playback = {
@@ -291,6 +506,80 @@ static struct snd_soc_dai_driver skl_platform_dai[] = {
.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE,
},
},
+/* BE CPU Dais */
+{
+ .name = "iDisp Pin",
+ .ops = &skl_link_dai_ops,
+ .playback = {
+ .stream_name = "iDisp Tx",
+ .channels_min = HDA_STEREO,
+ .channels_max = HDA_STEREO,
+ .rates = SNDRV_PCM_RATE_8000|SNDRV_PCM_RATE_16000|SNDRV_PCM_RATE_48000,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,
+ },
+},
+{
+ .name = "DMIC01 Pin",
+ .ops = &skl_dmic_dai_ops,
+ .capture = {
+ .stream_name = "DMIC01 Rx",
+ .channels_min = HDA_STEREO,
+ .channels_max = HDA_STEREO,
+ .rates = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_16000,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE,
+ },
+},
+{
+ .name = "DMIC23 Pin",
+ .ops = &skl_dmic_dai_ops,
+ .capture = {
+ .stream_name = "DMIC23 Rx",
+ .channels_min = HDA_STEREO,
+ .channels_max = HDA_STEREO,
+ .rates = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_16000,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE,
+ },
+},
+{
+ .name = "HD-Codec Pin",
+ .ops = &skl_link_dai_ops,
+ .playback = {
+ .stream_name = "HD-Codec Tx",
+ .channels_min = HDA_STEREO,
+ .channels_max = HDA_STEREO,
+ .rates = SNDRV_PCM_RATE_48000,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,
+ },
+ .capture = {
+ .stream_name = "HD-Codec Rx",
+ .channels_min = HDA_STEREO,
+ .channels_max = HDA_STEREO,
+ .rates = SNDRV_PCM_RATE_48000,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,
+ },
+},
+{
+ .name = "HD-Codec-SPK Pin",
+ .ops = &skl_link_dai_ops,
+ .playback = {
+ .stream_name = "HD-Codec-SPK Tx",
+ .channels_min = HDA_STEREO,
+ .channels_max = HDA_STEREO,
+ .rates = SNDRV_PCM_RATE_48000,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,
+ },
+},
+{
+ .name = "HD-Codec-AMIC Pin",
+ .ops = &skl_link_dai_ops,
+ .capture = {
+ .stream_name = "HD-Codec-AMIC Rx",
+ .channels_min = HDA_STEREO,
+ .channels_max = HDA_STEREO,
+ .rates = SNDRV_PCM_RATE_48000,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,
+ },
+},
};
static int skl_platform_open(struct snd_pcm_substream *substream)
@@ -308,7 +597,7 @@ static int skl_platform_open(struct snd_pcm_substream *substream)
return 0;
}
-static int skl_platform_pcm_trigger(struct snd_pcm_substream *substream,
+static int skl_pcm_trigger(struct snd_pcm_substream *substream,
int cmd)
{
struct hdac_ext_bus *ebus = get_bus_ctx(substream);
@@ -382,6 +671,68 @@ static int skl_platform_pcm_trigger(struct snd_pcm_substream *substream,
return 0;
}
+static int skl_dsp_trigger(struct snd_pcm_substream *substream,
+ int cmd)
+{
+ struct hdac_ext_bus *ebus = get_bus_ctx(substream);
+ struct hdac_bus *bus = ebus_to_hbus(ebus);
+ struct snd_soc_pcm_runtime *rtd = snd_pcm_substream_chip(substream);
+ struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+ struct hdac_ext_stream *stream;
+ int start;
+ unsigned long cookie;
+ struct hdac_stream *hstr;
+
+ dev_dbg(bus->dev, "In %s cmd=%d streamname=%s\n", __func__, cmd, cpu_dai->name);
+
+ stream = get_hdac_ext_stream(substream);
+ hstr = hdac_stream(stream);
+
+ if (!hstr->prepared)
+ return -EPIPE;
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ case SNDRV_PCM_TRIGGER_RESUME:
+ start = 1;
+ break;
+
+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+ case SNDRV_PCM_TRIGGER_SUSPEND:
+ case SNDRV_PCM_TRIGGER_STOP:
+ start = 0;
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ spin_lock_irqsave(&bus->reg_lock, cookie);
+
+ if (start)
+ snd_hdac_stream_start(hdac_stream(stream), true);
+ else
+ snd_hdac_stream_stop(hdac_stream(stream));
+
+ if (start)
+ snd_hdac_stream_timecounter_init(hstr, 0);
+
+ spin_unlock_irqrestore(&bus->reg_lock, cookie);
+
+ return 0;
+}
+static int skl_platform_pcm_trigger(struct snd_pcm_substream *substream,
+ int cmd)
+{
+ struct hdac_ext_bus *ebus = get_bus_ctx(substream);
+
+ if (ebus->ppcap)
+ return skl_dsp_trigger(substream, cmd);
+ else
+ return skl_pcm_trigger(substream, cmd);
+}
+
/* calculate runtime delay from LPIB */
static int skl_get_delay_from_lpib(struct hdac_ext_bus *ebus,
struct hdac_ext_stream *sstream,
diff --git a/sound/soc/intel/skylake/skl.c b/sound/soc/intel/skylake/skl.c
index 149426727ada..0ab02af0325a 100644
--- a/sound/soc/intel/skylake/skl.c
+++ b/sound/soc/intel/skylake/skl.c
@@ -382,6 +382,8 @@ static int skl_first_init(struct hdac_ext_bus *ebus)
return -ENXIO;
}
+ snd_hdac_ext_bus_parse_capabilities(ebus);
+
if (skl_acquire_irq(ebus, 0) < 0)
return -EBUSY;
@@ -455,6 +457,15 @@ static int skl_probe(struct pci_dev *pci,
pci_set_drvdata(skl->pci, ebus);
+ /* check if dsp is there */
+ if (ebus->ppcap) {
+ /* TODO register with dsp IPC */
+ dev_dbg(bus->dev, "Register dsp\n");
+ }
+
+ if (ebus->mlcap)
+ snd_hdac_ext_bus_get_ml_capabilities(ebus);
+
/* create device for soc dmic */
err = skl_dmic_device_register(skl);
if (err < 0)
--
1.9.1
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